Should cast type of folio->index from pgoff_t to loff_t to avoid overflow
while left shift operation.
Fixes: 3265d3db1f16 ("f2fs: support partial truncation on compressed inode")
Signed-off-by: Chao Yu <[email protected]>
---
fs/f2fs/compress.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index 5c1f47e45dab..6cd8902849cf 100644
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -1245,7 +1245,7 @@ int f2fs_truncate_partial_cluster(struct inode *inode,
u64 from, bool lock)
for (i = cluster_size - 1; i >= 0; i--) {
struct folio *folio = page_folio(rpages[i]);
- loff_t start = folio->index << PAGE_SHIFT;
+ loff_t start = (loff_t)folio->index << PAGE_SHIFT;
if (from <= start) {
folio_zero_segment(folio, 0, folio_size(folio));
--
2.49.0
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